Drilling-machine



nNiTEn srnrns PATENT carica.

AMOSMORGAN, 0F MASSILLON, OHIO.

paname-MACHINE.

Specification of Letters Patent No. 5,116, dated May 15, 184'?.k

The same letters indicate like parts in all the figures.

The nature of my invention consists in r constructing a cheap hand drill for iron and other metals so as tobe made self feeding, and at the same time being readily fed by hand without stopping the other feed.

The construction is as follows, viz: On a suitable base (a) are arranged two puppet heads and a movable rest similar to many drills now in use. In these puppet heads the mandrel (el) turns in the socket of which the drill is put. A thimble (e) is put on over the mandrel that extends from the rear puppet head to the center of the.

space between the puppet heads where a ratchet wheel (f) is located the hole through thecenter of which is a female screw.

The mandrel has a tube -(it) fitted onto it so as not to-slipwhich is half the length of the space between the puppet heads and on the outside of this tube a screw is cut that works into the nut or female screw on the ratchet wheel; a feather is formed on this tube which plays in a slot in an outer case (le) that surrounds it and is af'xed to the front puppet head, this prevents the screw tube from turning with the mandrel; by this arrangement it will be seen that as the ratchet wheel is turned the mandrel is moved forward or back. I'

The mandrel extends through the rear puppet head far enough to have on it an eccentric (Z) of common construction and on the end of said mandrel there is a crank or other device for turning it, the eccentric is surrounded by a band Which is connected by a rod (n) with` a crank on a shafty (0) that has its bearings in the puppet heads below and parallel with the mandrel.l

The shaft has a portion of it between the puppet heads formed into a long bent crank on which there is a dog (p) that works into the ratchet wheel to turn it, the turningof the mandrel causing the shaft to vibrate for that purpose.` If it becomes necessary to feed faster than the ratchet and dog will do it, the ratchet can be turned by hand enough to make up the deficiency.

What I claim as my invention and desire to secure by Letters Patent is- The combination of the mandrel with the feeding apparatusin the manner described, n

by means of the hollow screw and case sur-V rounding the mandrel connected with the,

ratchet and dog, substantially in the manner set forth.

AMos MORGAN. ,i

Witnesses:

n A. V. BROWNE,

J. P. VAN TYNE. 

